Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2018 Title: Interpretation of sea floor geologic units for offshore of western and southern Martha's Vineyard and north of Nantucket, Massachusetts Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9E9EFNE Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9E9EFNE Online_Linkage: https://www.sciencebase.gov/catalog/item/5bfd606ee4b0815414ca39e5 Larger_Work_Citation: Citation_Information: Originator: Elizabeth A. Pendleton Originator: Wayne E. Baldwin Originator: David S. Foster Originator: Seth D. Ackerman Originator: Brian D. Andrews Originator: Laura L. Brothers Originator: William C. Schwab Publication_Date: 2018 Title: Geospatial Data Layers of Shallow Geology, Sea-Floor Texture, and Physiographic Zones from the Inner Continental Shelf of Martha’s Vineyard from Aquinnah to Wasque Point, and Nantucket from Eel Point to Great Point Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9E9EFNE Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Pendleton, E.A., Baldwin, W.E., Foster, D.F., Ackerman, S.D., Andrews, B.D, Brothers, L.L., and Schwab, W.C., 2018, Geospatial data layers of shallow geology, sea-floor texture, and physiographic zones from the inner continental shelf of Martha's Vineyard from Aquinnah to Wasque Point, and Nantucket from Eel Point to Great Point: U.S. Geological Survey data release, https://doi.org/10.5066/P9E9EFNE. Online_Linkage: https://doi.org/10.5066/P9E9EFNE Online_Linkage: https://www.sciencebase.gov/catalog/item/5afee3bfe4b0da30c1bfbd28 Description: Abstract: Geologic, sediment texture, and physiographic zone maps characterize the sea floor south and west of Martha's Vineyard and north of Nantucket, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs, and surficial sediment samples. The interpretation of the seismic stratigraphy and mapping of glacial and Holocene marine units provided a foundation on which the surficial maps were created. This mapping is a result of a collaborative effort between the U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management to characterize the surface and subsurface geologic framework offshore of Massachusetts. Purpose: This dataset describes sea-floor geology Vineyard along the western and southern seafloor offshore of Martha’s Vineyard and north of Nantucket. Polygons are used to indicate the areal distribution of sea-floor outcrop for sub-surface stratigraphic units interpreted in high-resolution seismic reflection data. These data are useful for assessing relations between geologic framework, sea-bed morphology, and sediment textural trends. Supplemental_Information: This data release is a companion publication to USGS OFR 2018-1181: Pendleton, E.A., Baldwin, W.E., Ackerman, S.D, Foster, D.S., Andrews, B.D., Schwab, W.C., and Brothers, L.L. 2018, Sea-floor texture and physiographic zones of the inner continental shelf from Aquinnah to Wasque Point, Martha’s Vineyard, and Eel Point to Great Point, Nantucket Island, Massachusetts: U.S. Geological Survey Open-File Report 2018–1181, https://doi.org/10.3133/ofr20181181. The data in the source contributions used for this compilation are from field activities 2007-011-FA (https://cmgds.marine.usgs.gov/fan_info.php?fan=2007-011-FA), 2011-004-FA (https://cmgds.marine.usgs.gov/fan_info.php?fan=2011-004-FA), and 2013-003-FA (https://cmgds.marine.usgs.gov/fan_info.php?fan=2013-003-FA). Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070809 Ending_Date: 20130611 Currentness_Reference: ground condition of the source data used in this interpretation. Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.8627 East_Bounding_Coordinate: -70.0341 North_Bounding_Coordinate: 41.3894 South_Bounding_Coordinate: 41.1958 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:5bfd606ee4b0815414ca39e5 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: Massachusetts Office of Coastal Zone Management Theme_Keyword: CZM Theme_Keyword: Sea floor Theme_Keyword: Marine Geology Theme_Keyword: Interpretation Theme_Keyword: Seismic Interpretation Theme_Keyword: Geologic Framework Theme_Keyword: Surficial Geology Theme_Keyword: Esri Shapefile Theme_Keyword: U.S. Geological Survey Open-File Report 2008-1288 Theme_Keyword: U.S. Geological Survey Open-File Report 2012-1006 Theme_Keyword: U.S. Geological Survey Open-File Report 2016-1168 Theme_Keyword: EdgeTech Theme_Keyword: 512i Theme_Keyword: 424 Theme_Keyword: Knudsen Theme_Keyword: 3200 Theme_Keyword: Boomer Theme_Keyword: Seismic-reflection Profiles Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: marine geology Theme_Keyword: unconsolidated deposits Theme_Keyword: sea-floor characteristics Theme_Keyword: Pleistocene Theme_Keyword: Holocene Theme_Keyword: sedimentation Theme_Keyword: geospatial datasets Theme_Keyword: scientific interpretation Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: None Place_Keyword: Vineyard Sound Place_Keyword: Nantucket Sound Place_Keyword: Atlantic Ocean Place_Keyword: Martha's Vineyard Place_Keyword: Nantucket Place_Keyword: Cape Cod Place_Keyword: Aquinnah Place_Keyword: Chilmark Place_Keyword: Squibnocket Point Place_Keyword: Squibnocket Beach Place_Keyword: Gay Head Place_Keyword: South Beach Place_Keyword: Katama Beach Place_Keyword: Wasque point Place_Keyword: Chappaquiddick Island Place_Keyword: Long Point Wildlife Refuge Place_Keyword: Tisbury Place_Keyword: Nomans Land Place_Keyword: Lucy Vincent Beach Place_Keyword: Tisbury Great Pond Beach Place_Keyword: Muskeget Island Place_Keyword: Tuckernuck Island Place_Keyword: Eel Point Place_Keyword: Dionis Beach Place_Keyword: Children's Beach Place_Keyword: Coatue Place_Keyword: Great Point Place_Keyword: Nantucket Harbor Place_Keyword: Wasque Shoal Place_Keyword: Muskeget Channel Place_Keyword: Tuckernuck Bank Place_Keyword: Tuckernuck Shoal Place_Keyword: Shovelful Shoal Place_Keyword: Massachusetts Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: Sea floor Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. Additionally, there are limitations associated with qualitative surficial geologic mapping interpretations. Because of the scale of the source geophysical data and the spacing of samples, not all changes in sea floor geology are captured. The data were mapped between 1:8,000 and 1:25,000, but the recommended scale for application of these data is 1:25,000. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2226 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/5bfd606ee4b0815414ca39e5/?name=MV_ACK_surfgeology_browse.png Browse_Graphic_File_Description: Image of the sediment texture shapefile for offshore of western and southern Martha's Vineyard and north of Nantucket. The browse graphic is derived from the companion OFR (Pendleton and others, 2018). Browse_Graphic_File_Type: PNG Cross_Reference: Citation_Information: Originator: Charles J. O'Hara Originator: Robert N. Oldale Publication_Date: 1980 Title: Maps showing geology and shallow structure of eastern Rhode Island Sound and Vineyard Sound, Massachusetts Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map Issue_Identification: MF-1186 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: 5 sheets Online_Linkage: https://pubs.usgs.gov/mf/1980/mf-1186/ Cross_Reference: Citation_Information: Originator: Charles J. O'Hara Originator: Robert N. Oldale Publication_Date: 1987 Title: Maps showing geology, shallow structure, and bedforms of Nantucket Sound, Massachusetts Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map Issue_Identification: MF-1911 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: 4 sheets Online_Linkage: https://pubs.er.usgs.gov/publication/mf1911 Cross_Reference: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2013 Title: Geologic Mapping of the Seafloor Offshore of Massachusetts Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Other_Citation_Details: Geologic mapping of the Massachusetts inner continental shelf is a cooperative effort that was initiated in 2003 by the U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM). The National Oceanic and Atmospheric Administration (NOAA-NOS) is also an important partner and contributes hydrographic data that are integrated into the maps. The overall goal of this cooperative is to determine the geologic framework of the sea floor inside the 3-mile limit of State waters, using high-resolution geophysical techniques, sediment sampling, and sea-floor photography. Any source data used to generate interpretative maps and data products are cited in detail in the source citation section of this metadata file. Online_Linkage: https://woodshole.er.usgs.gov/project-pages/coastal_mass/ Cross_Reference: Citation_Information: Originator: Wayne E. Baldwin Originator: David S. Foster Originator: Elizabeth A. Pendleton Originator: Walter A. Barnhardt Originator: William C. Schwab Originator: Brian D. Andrews Originator: Seth Ackerman Publication_Date: 2016 Title: Shallow geology, sea-floor texture, and physiographic zones of Vineyard and western Nantucket Sounds, Massachusetts Series_Information: Series_Name: Open File Report Issue_Identification: 2016-1119 Publication_Information: Publication_Place: Reston, VA Publisher: US Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20161119 Cross_Reference: Citation_Information: Originator: David S. Foster Originator: Wayne E. Baldwin Originator: Walter A. Barnhardt Originator: William C. Schwab Originator: Seth D. Ackerman Originator: Brian D. Andrews Originator: Elizabeth A. Pendleton Publication_Date: 2015 Title: Shallow geology, sea-floor texture, and physiographic zones of Buzzards Bay, Massachusetts Series_Information: Series_Name: Open File Report Issue_Identification: 2014-1220 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20141220 Cross_Reference: Citation_Information: Originator: Elizabeth E. Pendleton Originator: Walter A. Barnhardt Originator: Wayne E. Baldwin Originator: David S. Foster Originator: William C. Schwab Originator: Brian D. Andrews Originator: Seth D Ackerman Publication_Date: 2015 Title: Sea-floor texture and physiographic zones of the inner continental shelf from Salisbury to Nahant, Massachusetts, including the Merrimack Embayment and Western Massachusetts Bay Series_Information: Series_Name: Open File Report Issue_Identification: 2015-1153 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20151153 Cross_Reference: Citation_Information: Originator: Elizabeth A. Pendleton Originator: Wayne E. Baldwin Originator: Walter A. Barnhardt Originator: Seth D. Ackerman Originator: David S. Foster Originator: Brian D. Andrews Originator: William C. Schwab Publication_Date: 2013 Title: Shallow Geology, Seafloor Texture, and Physiographic Zones of the Inner Continental Shelf from Nahant to Northern Cape Cod Bay, Massachusetts Series_Information: Series_Name: Open File Report Issue_Identification: 2012-1157 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/2012/1157/ Data_Quality_Information: Logical_Consistency_Report: Chirp seismic-reflection data collected during USGS Woods Hole Coastal and Marine Science Center field activities 2007-011-FA, 2011-004-FA, and 2013-003-FA were used to interpret the geologic framework offshore of western and southern Martha's Vineyard and north of Nantucket. Because of the scale and line spacing of the source seismic profiles, not all changes in seafloor geology are captured. The boundaries of polygons are inferred between seismic lines, and polygon boundaries should be considered an approximation of the location of a change in geology. Further, some boundaries were refined using backscatter and bathymetry changes at the seafloor. A constant seismic velocity of 1,500 m/s was assumed for all profiles to compute depth in meters, through water and all sediment types, which may result in inaccurate depths of stratigraphic units. Completeness_Report: All chirp seismic-reflection data collected within the study area during USGS Woods Hole Coastal and Marine Science Center field activities 2007-011-FA, 2011-004-FA, and 2013-003-FA were used to interpret the surficial geologic units. All of the interpretive layer bounds in this report are a little short of the data bounds in western Vineyard Sound, this is because this dataset abuts the interpretive layers of Baldwin and others (2016), and are not redundant with that interpretation. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Navigational accuracy of the seismic-reflection data used for this interpretation was assumed to be ± 10 to 20 meters. Refer to seismic trackline metadata in Denny and others (2009), Ackerman and others (2016), and Andrews and others (2014) in the source information for specific seismic data acquisition parameters and accuracy reports. Additional navigational uncertainty in this interpretation arises from subjective digitizing of the seismic reflectors, sampling of the interpreted horizons at 10-m along track intervals prior to export from the seismic interpretation package. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Denny, J.F. Originator: Danforth, W.W. Originator: Foster, D.S. Originator: Sherwood, C.R. Publication_Date: 2009 Title: Geophysical data collected off the south shore of Martha's Vineyard, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2008-1288 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: The SEG-Y data that was used to interpret geologic units with The KINGDOM Software 2d/3dPAK (ver. 8.8 - 64-bit) can be obtain by contacting the author of the Open-File Report. Online_Linkage: https://pubs.usgs.gov/of/2008/1288/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070809 Ending_Date: 20070813 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Denny and others, 2009 Source_Contribution: This report provided source geophysical data (sidescan-sonar bathymetry, and seismic-reflection profiles) for the area south of Martha's Vineyard surrounding the Martha's Vineyard Coastal Observatory. The 2007 mapping was conducted on the M/V Megan T. Miller. High-resolution chirp seismic-reflection profiles were collected during U.S. Geological Survey field activity 2007-011-FA using an EdgeTech Geo-Star full spectrum sub-bottom (FSSB) system and SB-0512i towfish. Thorough descriptions of acquisition and processing parameters for the survey are provided by Denny and others (2009) in the report and seismic-reflection metadata. Shallow geologic framework and surficial geology were interpreted from post-processed chirp seismic-reflection profiles. Source_Information: Source_Citation: Citation_Information: Originator: Andrews, B.D. Originator: Ackerman, S.D. Originator: Baldwin, W.E. Originator: Foster, D.S. Originator: Schwab, W.C. Publication_Date: 2014 Title: High-Resolution Geophysical Data from the Inner Continental Shelf: Vineyard Sound, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1006 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: The SEG-Y data that was used to interpret geologic units with The KINGDOM Software 2d/3dPAK (ver. 8.8 - 64-bit) can be obtain by contacting the author of the Open-File Report. Online_Linkage: https://pubs.usgs.gov/of/2012/1006/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20110507 Ending_Date: 20110517 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Andrews and others, 2014 Source_Contribution: This report provided source geophysical data (sidescan-sonar bathymetry, and seismic-reflection profiles) for the study area on the western side of Martha's Vineyard. The 2011 mapping was conducted on the R/V Scarlett Isabella during U.S. Geological Survey field activity 2011-004-FA. Chirp seismic-reflection data were collected using an EdgeTech Geo-Star FSSB subbottom profiling system and an SB-0512i towfish. Thorough descriptions of acquisition and processing parameters for each survey are provided by Andrews and others (2014) in the methods section and seismic-reflection metadata. Shallow geologic framework was interpreted from post-processed chirp seismic-reflection profiles Source_Information: Source_Citation: Citation_Information: Originator: Ackerman, S.D. Originator: Brothers L.L. Originator: Foster, D.S. Originator: Andrews B.D. Originator: Baldwin W.E. Originator: Schwab W.C. Publication_Date: 2016 Title: High-Resolution Geophysical Data From the Inner Continental Shelf: South of Martha's Vineyard and North of Nantucket, Massachusetts Series_Information: Series_Name: Open File Report Issue_Identification: 2016-1168 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: The SEG-Y data that was used to interpret geologic units with The KINGDOM Software 2d/3dPAK (ver. 8.8 - 64-bit) can be obtain by contacting the author of the Open-File Report. Online_Linkage: https://pubs.usgs.gov/of/2016/1168/ Online_Linkage: https://doi.org/10.3133/ofr20161168 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20130522 Ending_Date: 20130611 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Ackerman and others, 2016 Source_Contribution: This report provided source geophysical data (sidescan-sonar bathymetry, and seismic-reflection profiles) for the majority of this study including offshore of southern Martha's Vineyard and north of Nantucket. These areas were surveyed with the Scarlett Isabella 2013 during U.S. Geological Survey field activity 2013-003-FA. Seismic-reflection data were collected using an EdgeTech Geo-Star FSSB subbottom profiling system and an SB-0512i towfish. Thorough descriptions of acquisition and processing parameters for each survey are provided by Ackerman and others (2016) in the methods section and seismic-reflection metadata. Shallow geologic framework and surficial geology were interpreted from post-processed chirp seismic-reflection profiles. Process_Step: Process_Description: Chirp and boomer seismic-reflection data were interpreted using The IHS Kingdom Suite (version 8.8 - 64 bit) seismic interpretation software. Interpretation consisted of identifying and digitizing erosional unconformities defining the boundaries between Holocene, Pleistocene, and pre-Quaternary seismic units, and digitizing the extent over which each of the defined sub-surface seismic units crops out on the sea floor. The digitized sea-floor outcrop extents for each seismic unit were sampled at a 10-meter along track interval and exported from Kingdom as ASCII text. The resultant text file was imported into ArcMap (10.5) as point features (easting, northing, seismic unit) using the 'Add XY data' function, then saved as a point shapefile (UTM, Zone 19N, WGS84). Source_Used_Citation_Abbreviation: seismic horizon data Process_Date: 2017 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Process_Step: Process_Description: A polygon feature class of the seismic-reflection survey area was created from the sediment texture feature class in ArcCatalog 10.5. A new attribute field named 'Geology' was added to the attribute table and fields associated with sediment texture were deleted. The point shapefile containing the along track extents of seismic unit outcrop was then used to guide the surficial geology interpretation (using editor processes 'cut polygon feature', 'intersect', 'merge', and 'clip' in ArcMap 10.5). As new polygons were created, the 'Geology' attribute field was populated with the appropriate geologic unit label. Polygon editing was done at scales between 1:8,000 and 1:25,000, depending on the size of the outcrop area. Source_Used_Citation_Abbreviation: shapefile of profile tracklines and point shapefile containing the along track extents of seismic unit outcrop. Process_Date: 2017 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Process_Step: Process_Description: The polygon feature class containing the surficial geologic units was assigned topology rules, (i.e. no gaps and no overlaps). Topology errors were identified and remedied using the topology toolbar in ArcMap (10.5). Finally, the surficial geology was exported from the geodatabase as a shapefile Source_Used_Citation_Abbreviation: Polygon shapefile containing the surficial geologic units Process_Date: 2017 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20200807 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-polygon Point_and_Vector_Object_Count: 273 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0197427722 Longitude_Resolution: 0.0261514554 Geographic_Coordinate_Units: Decimal seconds Geodetic_Model: Horizontal_Datum_Name: WGS_1984 Ellipsoid_Name: WGS_84 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: MV_ACK_surfgeology.shp Entity_Type_Definition: surficial geology shapefile Entity_Type_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry Attribute_Definition_Source: Esri Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Polygon Codeset_Source: Esri Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: Geology Attribute_Definition: Surficial geologic unit Attribute_Definition_Source: Seismic interpretations Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Qdt - Pleistocene glacial till and ice contact deposits - Drift composed of poorly sorted mud, sand, gravel, and boulders, that produce rugged topography where they crop out at the seafloor. While seismic penetration is typically limited, these units produce chaotic reflectors with common diffraction hyperbolae. Underlies Ut (transgressive unconformity) and Ur (regressive unconformity), and in places overlie the fluvial unconformity U1, and the tops of older Pleistocene till and drift and Cretaceous and Tertiary coastal plain deposits (QTKu?). Codeset_Source: U.S. Geological Survey Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Qdm - Pleistocene Martha's Vineyard and Buzzards Bay end moraine deposits - Drift composed of poorly sorted mud, sand, gravel, and boulders that produce rugged topography where they crop out at the seafloor. Seismic penetration is limited in chirp profiles. Similar to Qdt, boomer profiles locally penetrate Qdm. Internal reflections are irregular or parabolic. Underlies the transgressive (Ut) and regressive (Ur) unconformities and in places overlies the U1 unconformity, and the tops of older Pleistocene till and drift (Qpw?) and Cretaceous and Tertiary coastal plain deposits (TKu?). Qdm crops out at the sea-floor forming ridges and ledges, which are composed of sand, gravel, and in places, boulders. Codeset_Source: U.S. Geological Survey Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Qdl - Pleistocene glaciolacustrine (glaciodeltaic and lake floor) - Stratified drift composed of mud and sand that produce strong to weak, vertically laminated, horizontal to gently dipping reflectors. Underlies Ut and Ur, and typically drapes glacial till (Qdt) and moraine (Qdm). Codeset_Source: U.S. Geological Survey Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Qdf - Pleistocene glaciofluvial (outwash) - Stratified drift composed of sand and gravel that produce vertically laminated, roughly horizontal to broadly undulating reflectors, cut and fill structures, and zones of acoustic transparency. Underlies Ut and Ur, and typically overlies glaciolacustrine (Qdl) and glacial till (Qdt). Codeset_Source: U.S. Geological Survey Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Qfe - Holocene fluvial and estuarine - Fluvial sands and gravels, and estuarine sands and muds (locally > 11 m thick) that fill incised fluvial valleys. Produces vertically laminated, horizontal to concave-up reflectors and zones of acoustic transparency; local indications of cut-and-fill. Bounded above and below by Ut and the regressive unconformity (Ur), respectively. Codeset_Source: U.S. Geological Survey Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Qmn - Holocene nearshore marine - Mostly sandy deposits (typically less than 2 m but up to 17 m thick) that form tidal shoals and sand waves , and beaches and bars locally along their nearshore margins. Generally acoustically transparent with faint, flat-lying reflectors, except within the tidal shoals, where internal reflectors are indicative of morphologic evolution. Overlies transgressive unconformity (Ut) and grades to Qmd westward toward Rhode Island Sound. Codeset_Source: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: GS ScienceBase Contact_Address: Address_Type: mailing address Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Country: United States Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: MV_ACK_surfgeology (and associated shapefile components) contains qualitatively derived polygons that define sea floor geology offshore of western and southern Martha's Vineyard and north of Nantucket, MA and the associated metadata. The dataset also contains a browse graphic and the associated CSDGM metadata in XML format. Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: shapefile Format_Version_Number: ArcGIS v. 10.5.1 shapefile Transfer_Size: 0.39 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5bfd606ee4b0815414ca39e5 Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5bfd606ee4b0815414ca39e5 Network_Resource_Name: https://doi.org/10.5066/P9E9EFNE Access_Instructions: To download the data, it is recommended that you go to the page containing the data and take advantage of the large file handler. The first link is to the page containing the data. The second is a direct link to download all data available from the page as a zip file. And the final link is to the publication landing page. Digital_Form: Digital_Transfer_Information: Format_Name: WMS Format_Information_Content: ArcGIS v. 10.5.1 shapefile provided through a WMS (web mapping service). Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalogMaps/mapping/ows/5aff06aae4b0da30c1bfcde2?service=wms&request=getcapabilities&version=1.3.0 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5aff06aae4b0da30c1bfcde2 Network_Resource_Name: https://doi.org/10.5066/P9E9EFNE Access_Instructions: The first link in the network resources accesses the data through a coverage service, the second is to the page containing the data, and the third link is to the publication landing page. Digital_Form: Digital_Transfer_Information: Format_Name: WFS Format_Information_Content: ArcGIS v. 10.5.1 shapefile provided through a WFS (web feature service). Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalogMaps/mapping/ows/5aff06aae4b0da30c1bfcde2?service=wfs&request=getcapabilities&version=1.0.0 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5aff06aae4b0da30c1bfcde2 Network_Resource_Name: https://doi.org/10.5066/P9E9EFNE Access_Instructions: The first link is to the page containing the data. The second is a direct link to download all data available from the page as a zip file. And the final link is to the publication landing page. Fees: None Technical_Prerequisites: These data are available in Environmental Systems Research Institute (Esri) shapefile format. The user must have software capable of importing and processing this data type. Metadata_Reference_Information: Metadata_Date: 20200807 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: None Metadata_Use_Constraints: None